<template>
  <div class="cart">
    <h4>全部商品</h4>
    <div class="cart-main">
      <div class="cart-th">
        <div class="cart-th1">全部</div>
        <div class="cart-th2">商品</div>
        <div class="cart-th3">单价（元）</div>
        <div class="cart-th4">数量</div>
        <div class="cart-th5">小计（元）</div>
        <div class="cart-th6">操作</div>
      </div>
      <div class="cart-body">
        <ul class="cart-list" v-for="(good, index) in goodsInfo" :key="good.id">
          <li class="cart-list-con1">
            <input
              type="checkbox"
              name="chk_list"
              :checked="good.isChecked == 1"
              @click="goodCheck(good, index)"
            />
          </li>
          <li class="cart-list-con2">
            <img :src="good.imgUrl" />
            <div class="item-msg">
              {{ good.skuName }}
            </div>
          </li>

          <li class="cart-list-con4">
            <span class="price">{{ good.skuPrice }}.00</span>
          </li>
          <li class="cart-list-con5">
            <a
              href="javascript:void(0)"
              class="mins"
              @click="handler('min', -1, good)"
              >-</a
            >
            <input
              autocomplete="off"
              type="text"
              :value="good.skuNum"
              minnum="1"
              class="itxt"
              @change="handler('change', $event.target.value * 1, good)"
            />
            <a
              href="javascript:void(0)"
              class="plus"
              @click="handler('add', 1, good)"
              >+</a
            >
          </li>
          <li class="cart-list-con6">
            <span class="sum">{{ good.skuPrice * good.skuNum }}.00</span>
          </li>
          <li class="cart-list-con7">
            <a class="sindelet" @click="deleteGood(good.skuId)">删除</a>
            <br />
            <a href="#none">移到收藏</a>
          </li>
        </ul>
      </div>
    </div>
    <div class="cart-tool">
      <div class="select-all">
        <input
          class="chooseAll"
          type="checkbox"
          @click="AllCheckOrAllDone"
          :checked="AllChecked"
        />
        <span>全选</span>
      </div>
      <div class="option">
        <a @click="DeleteAll" >删除选中的商品</a>
        <a href="#none">移到我的关注</a>
        <a href="#none">清除下柜商品</a>
      </div>
      <div class="money-box">
        <div class="chosed">已选择 <span>0</span>件商品</div>
        <div class="sumprice">
          <em>总价（不含运费） ：</em>
          <i class="summoney">{{ amount }}</i>
        </div>
        <div class="sumbtn">
          <a class="sum-btn" @click="Buy">结算</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import throttle from "lodash/throttle";
export default {
  name: "ShopCart",
  methods: {
    getData() {
      this.$store.dispatch("GetCartList");
    },
     AllCheckOrAllDone() {
      let arr = []
      if (this.AllChecked) {
        this.goodsInfo.map((item) => {
          item.isChecked = 0;
          // arr.push(this.$store.dispatch('changeIsChecked',item))
        });
      } else {
        this.goodsInfo.map((item) => {
          item.isChecked = 1;
          // arr.push(this.$store.dispatch('changeIsChecked',item))
        });
      }

      // try{
      //     await this.$store.dispatch('AllCheckOrAllDone',arr)
      //     this.getData()
      // }catch(err){

      // }
    },
    goodCheck:throttle(async function(good,index) {
        this.goodsInfo[index].isChecked == 1
        ? (this.goodsInfo[index].isChecked = 0)
        : (this.goodsInfo[index].isChecked = 1);
      try{
          await this.$store.dispatch('changeIsChecked',good)
      }catch(err){
          console.log(err);
      }
    },1000),
    handler:throttle(async function(type, num, good){
      console.log(type, num, good);
      switch (type) {
        case "min":
          num = good.skuNum > 1 ? -1 : 0;
          break;

        case "add":
          num = 1;
          break;

        case "change":
          if (isNaN(num) || num < 1) {
            num = 0;
          } else {
            num = parseInt(num) - good.skuNum * 1;
          }
          break;
      }
      try{
        await this.$store.dispatch("reqAddToCar", {
        skuId: good.skuId,
        skuNum: num,
      });
        this.getData()
      }catch(err){
          console.log(err.message);
      }
    },1000),
    deleteGood: throttle(async function (skuId) {
      try{
        await this.$store.dispatch("DeleteGood", skuId);
        this.getData()
      }catch(err){
        console.log(err);
      }
      
    }, 20),
    async DeleteAll(){
        let arr = []
        this.goodsInfo.map((item)=>{
          if(item.isChecked == 1){
            arr.push(this.$store.dispatch('DeleteGood',item.skuId))
          }
        })
        try{
          await this.$store.dispatch("DeleteAll",arr)
          location.reload();
        }catch(err){
            console.log(err.message);
        }
    },
    Buy(){
      this.$router.push({name:'trade'})
    }
  },
  mounted() {
    this.getData();
  },
  computed: {
    goodsInfo() {
      return this.$store.state.ShopCart.goodsInfo || [];
    },
    amount() {
      let amount = 0;
      for (let i = 0; i < this.goodsInfo.length; i++) {
        if (this.goodsInfo[i].isChecked == 1) {
          amount += this.goodsInfo[i].skuPrice * this.goodsInfo[i].skuNum;
        }
      }
      return amount;
    },
    // 判断商品是否全选
    AllChecked() {
      let result = true;
      if (this.goodsInfo.length > 0) {
        for (let i = 0; i < this.goodsInfo.length; i++) {
          if (this.goodsInfo[i].isChecked != 1) {
            result = false;
          }
        }
      } else {
        result = false;
      }
      return result;
    },
  },
};
</script>

<style lang="less" scoped>
.cart {
  width: 1200px;
  margin: 0 auto;

  h4 {
    margin: 9px 0;
    font-size: 14px;
    line-height: 21px;
  }

  .cart-main {
    .cart-th {
      background: #f5f5f5;
      border: 1px solid #ddd;
      padding: 10px;
      overflow: hidden;

      & > div {
        float: left;
      }

      .cart-th1 {
        width: 5%;

        input {
          vertical-align: middle;
        }

        span {
          vertical-align: middle;
        }
      }

      .cart-th2 {
        width: 45%;
      }

      .cart-th3,
      .cart-th4,
      .cart-th5,
      .cart-th6 {
        width: 12.5%;
      }
    }

    .cart-body {
      margin: 15px 0;
      border: 1px solid #ddd;

      .cart-list {
        padding: 10px;
        border-bottom: 1px solid #ddd;
        overflow: hidden;

        & > li {
          float: left;
        }

        .cart-list-con1 {
          width: 5%;
        }

        .cart-list-con2 {
          width: 25%;
          margin-left: 210px;
          img {
            width: 82px;
            height: 82px;
            float: left;
          }

          .item-msg {
            float: left;
            width: 150px;
            margin: 0 10px;
            line-height: 18px;
          }
        }

        .cart-list-con4 {
          width: 17%;
        }

        .cart-list-con5 {
          width: 10%;

          .mins {
            border: 1px solid #ddd;
            border-right: 0;
            float: left;
            color: #666;
            width: 6px;
            text-align: center;
            padding: 8px;
          }

          input {
            border: 1px solid #ddd;
            width: 40px;
            height: 33px;
            float: left;
            text-align: center;
            font-size: 14px;
          }

          .plus {
            border: 1px solid #ddd;
            border-left: 0;
            float: left;
            color: #666;
            width: 6px;
            text-align: center;
            padding: 8px;
          }
        }

        .cart-list-con6 {
          width: 2%;
          margin-left: 50px;
          .sum {
            font-size: 16px;
          }
        }

        .cart-list-con7 {
          width: 5%;
          margin-left: 120px;
          a {
            color: #666;
            cursor: pointer;
          }
        }
      }
    }
  }

  .cart-tool {
    overflow: hidden;
    border: 1px solid #ddd;

    .select-all {
      padding: 10px;
      overflow: hidden;
      float: left;

      span {
        vertical-align: middle;
      }

      input {
        vertical-align: middle;
      }
    }

    .option {
      padding: 10px;
      overflow: hidden;
      float: left;

      a {
        float: left;
        padding: 0 10px;
        color: #666;
      }
    }

    .money-box {
      float: right;

      .chosed {
        line-height: 26px;
        float: left;
        padding: 0 10px;
      }

      .sumprice {
        width: 200px;
        line-height: 22px;
        float: left;
        padding: 0 10px;

        .summoney {
          color: #c81623;
          font-size: 16px;
        }
      }

      .sumbtn {
        float: right;

        a {
          display: block;
          position: relative;
          width: 96px;
          height: 52px;
          line-height: 52px;
          color: #fff;
          text-align: center;
          font-size: 18px;
          font-family: "Microsoft YaHei";
          background: #e1251b;
          overflow: hidden;
        }
      }
    }
  }
}
</style>